VOGONS


First post, by Grayshazzle

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Hey everyone, I am working on a 98 build and need some help on what the highest MHz my motherboard can take for a Pentium III. My MB is a ECS P6BXT-A+ REV 1.3B. Now I know I could just look at it quickly myself but somehow I got a little confused because I know the later Pentium IIIs such as the Tualatin were not out when this MB came out so the documentation only states that is supports up to or "more" in MHz. I even got myself a modified Tualatin on the way for chipsets (Intel 440BX) that do not support the GHz CPUs but the sad truth I found out is that the CPU's bus speeds are supported up to 133Mhz but the FBS is only 100Mhz, so it won't work unless it's 133Mhz as well as stated on eBay. I want to only use the Socket 370 and not the Slot 1, just noting this here as well so you can ignore the support for Slot 1 unless it somehow is more superior in some way. I also tried the website "cpu-upgrade.com" but my revision is not listed as it only lists revision 2.2. If I could have just a little help on knowing what the max is for the motherboard for Socket 370 that would be awesome. I would also like to throw out there if CPU cache even matters for compatibility and if mine can achieve 512MB. I am also pairing this CPU with a GeForce 4 Ti 4200 just so everyone knows so if anyone finds out the max for this MB, then maybe you can correct me too whether this is the right card in terms of "speed" for compatibility (smooth FPS). I also have linked another specs chart on this MB that shows there are clock speed settings and I have a jumper on the MB too that has options for 66MHz or 100MHz FBS speed. Thanks everyone!

Manual: https://www.elhvb.com/mobokive/archive/Ecs%20 … /p6bxtaplus.zip

Information: https://assets.hardwarezone.com/2009/reviews/ … p6bxtap-13b.htm

Reply 1 of 4, by PC Hoarder Patrol

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You may be out of luck re socket 370 use as according to ECS, only revision 2.2x boards have native support for FC-PGA (PIII / Celeron) processors on that socket

https://web.archive.org/web/20011222053511/ht … port_table2.htm

but you can still use the board with Slot 1 processors or maybe socket 370 processors on a sloket adapter, probably up to 850MHz

Also, despite what I linked in the other thread, this is the latest bios for your board

https://www.elhvb.com/mobokive/archive/Ecs%20 … /bxtap53std.exe

You can see the full bios history here

https://web.archive.org/web/20041009212847/ht … d/p6bxtap1x.htm

Reply 2 of 4, by Horun

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PC Hoarder Patrol wrote on 2020-12-14, 02:32:
You may be out of luck re socket 370 use as according to ECS, only revision 2.2x boards have native support for FC-PGA (PIII / C […]
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You may be out of luck re socket 370 use as according to ECS, only revision 2.2x boards have native support for FC-PGA (PIII / Celeron) processors on that socket
https://web.archive.org/web/20011222053511/ht … port_table2.htm

but you can still use the board with Slot 1 processors or maybe socket 370 processors on a sloket adapter, probably up to 850MHz
Also, despite what I linked in the other thread, this is the latest bios for your board
https://www.elhvb.com/mobokive/archive/Ecs%20 … /bxtap53std.exe

You can see the full bios history here
https://web.archive.org/web/20041009212847/ht … d/p6bxtap1x.htm

Yep on bottom of this earlier dated page it states a Slocket is required for FC-PGA, you can use the PPGA Celerons (Mendocino PPGA, 300–533 MHz) in the soc370 of the 1.3x:
https://web.archive.org/web/20000304201816/ht … com/product.htm
And the BIOS for v1.3x is same for v2.2 according to this:
https://web.archive.org/web/20010618050343/ht … /p6bxt-a+-b.htm
so you can get the p6bxtap53std.exe BIOS from ECS still here:
https://www.ecs.com.tw/ECSWebSite/Product/Pro … el-RR-#Overview
look for 5.3std under BIOS's...

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 4 of 4, by Paadam

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If your board supports only minimum of 1.8 v vcore then just use slocket with Coppermine (133MHz is also possible) or try to find Powerleap adapter and can run Tualatin also. Though it is much easier just to buy a BX board that works with Tualatin with regular slocket.

Many 3Dfx and Pentium III-S stuff.
My amibay FS thread: www.amibay.com/showthread.php?88030-Man ... -370-dual)